2022年07月23日 20:58
Lead is the most widely used shielding material, because its ability to efficiently shield X-rays is superior to that of other materials owing to its high Z number, high density, and low cost.
Lead aprons are very effective at absorbing diagnostic x rays to the parts of the body shielded by the apron. Their effectiveness is energy dependent but averages around 90–95 percent. Leaded aprons are worn as good radiation safety practice and in keeping with the ALARA (as low as reasonably achievable) concept.
Lead aprons, lead blankets, and various other types of lead shielding for radiation are the most effective material to fight off x-rays and gamma-rays.
Hence, Zn seems to be an effective agent in mitigating the detrimental effects caused by exposure to X-rays.
Since the X-ray staff are exposed to radiation all day, every day, it is better for them to continue to wear shielding to help protect them from the external radiation.
Lead garments and shields are an essential part of proper x-ray procedures because they protect you from unnecessary exposure to radiation.
Examples of commonly used PPE for radiation protection from X-rays and gamma rays include: Lead aprons or vests. Wearing lead aprons can reduce a worker's radiation dose. Customized lead (or lead equivalent) aprons are available for a wide range of occupational settings and job tasks.
Potassium iodide (KI) is a type of iodine that is not radioactive and can be used to help block one type of radioactive material, radioactive iodine (I-131), from being absorbed by the thyroid.
Radiation Decontamination* Most air-purified respirators (i.e., protective masks) afford excellent protection from inhalation of radioactive material. Radioisotopes such as radon and tritium gas will pass through these filters. However, short exposures to these gases are not considered medically significant.
When the body is exposed to radiation, free radicals and reactive oxygen species (ROS) are produced and oxidize cell components, resulting in cell damage. Vitamin C has the potential to scavenge these radical products, thereby protecting against radiation-induced cell damage.